By Emmanuel Bobby
U.S. financial markets experienced a volatile trading session Friday after the Supreme Court ruled that President Donald Trump could not impose sweeping tariffs under the International Emergency Economic Powers Act (IEEPA). The decision sent shockwaves through global markets as investors attempted to reassess the future of U.S. trade policy, supply chains, and economic growth.
Major stock indexes surged in the immediate aftermath of the ruling, as investors initially welcomed the prospect of reduced trade barriers and lower costs for businesses and consumers. However, those gains faded and resurfaced multiple times throughout the day as uncertainty over what comes next for U.S. trade policy weighed on sentiment.
By the closing bell, the tech-heavy Nasdaq Composite Index rose nearly 1%, reflecting strong gains in major technology stocks. The broader S&P 500 climbed almost 0.7%, while the Dow Jones Industrial Average added about 230 points, or roughly 0.5%.
Bond markets also reacted sharply. Yields on U.S. Treasury securities rose across the curve, with the benchmark 10-year Treasury yield climbing to around 4.09%, a level closely watched because mortgage rates often track it. The 30-year Treasury yield rose above 4.74%, signaling shifting expectations about inflation, interest rates, and government borrowing.
The U.S. dollar initially strengthened against major global currencies, including the euro, British pound, and Japanese yen, as investors interpreted the court’s decision as a sign of legal clarity and institutional stability. However, the dollar later weakened as markets processed the broader implications of ongoing trade uncertainty and potential future tariff actions by the administration.
At the same time, gold and silver prices rallied, suggesting that investors still see risks ahead. Precious metals often rise when markets are uncertain, and analysts said the move reflected lingering doubts about whether companies and consumers are truly in the clear from trade-related disruptions.
Stocks most sensitive to tariffs, including retailers and appliance manufacturers, were among the top performers of the day, as investors priced in the possibility of lower import costs. Major companies such as Amazon and Apple were among the strongest performers in the Dow. Logistics and trucking firms, including Old Dominion Freight Line and Paccar, also outpaced the broader market, reflecting optimism about smoother supply chains and increased trade activity.
Sector-wise, the S&P 500 segments tied to consumer discretionary, industrials, real estate, and technology stocks led the gains, while sectors less exposed to tariffs lagged behind.
Market analysts said the ruling was largely expected but still represents a turning point for trade policy. Dan Ives, managing director at Wedbush Securities, said the decision was “a clear blow to the Trump tariff policy,” noting that global supply chains have already been reshaped in response to the tariff regime. He added that companies have been adjusting their operations, sourcing strategies, and production locations to navigate the complex tariff environment.
However, Ives cautioned that the ruling does not end the tariff debate, pointing out that the administration still has other legal and policy tools it could use to impose import duties or renegotiate trade deals. He said that if refunds are issued for tariffs already paid, it could be particularly beneficial for technology companies, which rely heavily on global supply chains.
Michael Pearce, chief U.S. economist at Oxford Economics, warned that while the removal of tariffs could provide a short-term boost to economic activity, prolonged uncertainty could offset those gains. He said the administration is likely to pursue alternative methods to maintain tariff levels, meaning the overall burden on trade could remain close to current levels.
Pearce added that even if tariffs are reinstated through different mechanisms, the impact could vary significantly by country and industry, creating another wave of uncertainty for businesses, investors, and households. “This uncertainty is a key downside risk that could ding, rather than derail, growth this year,” he said.
Investment bank Evercore echoed those concerns, noting that the Supreme Court’s failure to address refunds for tariffs collected could lead to a complicated and lengthy legal and bureaucratic process. The firm said sorting out refunds could take months and involve extensive litigation and administrative hurdles, adding another layer of unpredictability to the economic outlook.
The market reaction came against a backdrop of slowing economic growth. Just hours before the Supreme Court decision, the Bureau of Economic Analysis reported that U.S. real gross domestic product grew by 1.4% in the final quarter of 2025, down sharply from a 4.4% growth rate in the previous quarter, signaling a cooling economy.
Public confidence in Trump’s economic management has also been slipping. A recent Reuters-Ipsos poll found that only 34% of Americans approve of his handling of the economy, a figure that could influence political dynamics ahead of his upcoming State of the Union address to Congress next week.
As investors digest the Supreme Court ruling and await the administration’s next move on trade policy, markets are likely to remain sensitive to headlines, legal developments, and policy announcements, with volatility expected to continue in the coming weeks.
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